0.65 d FU Ori FU 05h 45m 22.36s +09° 04′ 12.4″ 9.60 F0Iab prototype FU Orionis star BF Ori BF 26403 05h 37m 13.26s −06° 35′ 00.6″ 9.69 A7III UX Ori star...

It has the designations ζ Orionis, which is Latinised to Zeta Orionis and abbreviated Zeta Ori or ζ Ori, and 50 Orionis, abbreviated 50 Ori. The system...

at near-infrared wavelengths. Its Bayer designation is α Orionis, Latinised to Alpha Orionis and abbreviated Alpha Ori or α Ori. With a radius between...

constellation of Orion. It has the Bayer designation ε Orionis, which is Latinised to Epsilon Orionis and abbreviated Epsilon Ori or ε Ori. This is a massive...

Saiph /ˈseɪf/, designation Kappa Orionis (κ Orionis, abbreviated Kappa Ori, κ Ori) and 53 Orionis (53 Ori), is a blue supergiant star and the sixth-brightest...

Sigma Orionis or Sigma Ori (σ Orionis, σ Ori) is a multiple star system in the constellation Orion, consisting of the brightest members of a young open...

GW Orionis is a T Tauri type pre-main sequence hierarchical triple star system. It is associated with the Lambda Orionis star-forming region and has an...

image box.) Other massive stars include the yellow giant 45 Orionis and the variable KX Orionis. One candidate proplyd was discovered in NGC 1977 with the...

Upsilon Orionis (υ Ori, υ Orionis) is a star in the constellation Orion. It has the traditional name Thabit /ˈθeɪbɪt/ or Tabit (ﺛﺎﺑﺖ, Arabic for "the...

Xi Orionis (ξ Orionis) is a binary star system in the northeastern part of the constellation of Orion, well above the red giant star Betelgeuse in the...

the Lambda Orionis Ring seen by the Spitzer Space Telescope. Young stars are forming in this region. Barnard 35, a part of the Lambda Orionis Ring seen...

V529 Orionis, also known as Nova Orionis 1678, is a variable star which is usually classified as a nova. It was discovered on 28 March 1678 by Johannes...

Omicron1 Orionis (ο1 Ori) is a binary star in the northeastern corner of the constellation Orion. It is visible to the naked eye with an apparent visual...

Phi1 Orionis is a binary star system in the constellation Orion, positioned less than a degree to the south of Meissa. It is visible to the naked eye...

Eta Orionis or Algjebbah, Latinized from η Orionis, is a multiple star in the constellation Orion. It lies a little to the west of Orion's Belt between...

−06° 33′ 01.0″ 5.06 −2.78 1203 B2V 10 Mon 10 45546 30772 06h 27m 57.57s −04° 45′ 43.7″ 5.06 −3.03 1353 B2V HD 49331 49331 32558 06h 47m 37.22s −08° 59′ 54...

Phi2 Orionis is a star in the constellation Orion, where it forms a small triangle on the celestial sphere with the nearby Meissa and Phi1 Orionis. This...

are some exceptions such as the chain of stars π1, π2, π3, π4, π5 and π6 Orionis. The most stars given the same Bayer designation but with an extra number...

Nu Orionis (ν Orionis) is a binary star system in the northeastern part of the constellation Orion. It should not be confused with the variable star NU...

constellation of Cygnus. It is a variable star of the FU Orionis-type, and was the second FU Orionis-type variable to be discovered. The system is located...

Pi6 Orionis (π6 Ori, π6 Orionis) is a solitary star in the eastern part of the constellation Orion. It is visible to the naked eye with an apparent visual...

a result of its rapid rotation, Omega Orionis is a Be class star. Among the stars of this class, Omega Orionis was the first where the magnetic field...

Pi2 Orionis (π2 Ori, π2 Orionis) is the Bayer designation for a solitary star in the equatorial constellation of Orion. Although the Bright Star Catalogue...

Omicron2 Orionis (ο2 Ori) is a solitary star in the constellation Orion. It has an apparent visual magnitude of 4.06, which is bright enough to be seen...

Pi4 Orionis (π4 Ori, π4 Orionis) is a binary star system in the western part of the Orion constellation. It is visible to the naked eye with an apparent...

22 Orionis is a binary star in the equatorial constellation of Orion. It has the Bayer designation o Orionis, while 22 Orionis is the Flamsteed designation...

51 Orionis is a single star in the equatorial constellation of Orion. It has the Bayer designation b Orionis, while 51 Orionis is the Flamsteed designation...

Tau Orionis (τ Ori, τ Orionis) is a solitary star in the constellation Orion. If an imaginary line is drawn north-west between the stars Rigel and Mintaka...

(the other being Upsilon Orionis) marking the top of Orion's right boot. It has the Bayer designation e Orionis, while 29 Orionis is the Flamsteed designation...

Wavelengths of the Diameters of alpha Orionis and alpha Scorpii: Changes in Effective Temperature of alpha Orionis and Very Recent Dust Emission". Astrophysical...